John g



(No Model.)

J. G.MOAULEY.-

FUEL FEEDING APPARATUS.

No. 247,570. Patented Sept. 27,1881.

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JOHN G. MG AULEY, OF NEW YORK, N. Y.

FUEL-FEEDING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 247,570, dated September 27, 1881.

Application filed November 8, 1880. (No model.)

ing fuel to that class of furnaces used for smelt ing, melting iron, or heating iron for rollingmills, and other purposes requiring an intense and equal heat; and it consists in the construction and arrangement of the feeding or injecting apparatus, and in the combination of the same with a furnace designed to consume granulated,pulverizetmqrliquid fuel) Iattain these objects by the mechanism illustrated in the accompanying drawings, in which- Figure 1 is a sectional elevation of the feeding or injecting apparatus and vertical longitudinal section of the furnace. Fig. 2 is a section of the fuel and air supply pipe, showing the valve or slide. Fig. 3 is a section of the feeding or injecting pipe, showing its form at the discharging end.

The same letters represent the same parts in all the figures.

A, Fig. 1, is the combustion-chamber. B is theheatingorineltingchamber. Oisthesmoke or draft chimney. D is the draw-off or gate at the end of the heating-chamber. O is an opening at the lowest place in the combustion-chamher. It is the walls of the furnace. S S are the supports of furnace. The furnace is lined inside with fire-brick or other fire-proof material. Eis thefuel-hopper. Fisadouble screwconveyer passing through the hopper near the bottom and attached to a shaft, on the end of which shaft is a cone or spiral pulley, G. The shaft revolves in and is supported by the uprights and journals attached to the frames N N. By revolving the screw-c011 veyer F the pulverized or granulated fuel is conveyed out of opposite sides of the hopper and falls into the funnel-shaped pipes I I. The pipes I I are attached to and form a part of the injecting or feeding apparatus. The injectors or feeding apparatus are constructed in the form of a tube or pipe, one end being connected to the blower or blast H by the pipe K. The fuel and air pipes I I are connected with the air-pipe K. The air-pipe K, at its junction with the pipe I,

is contracted and carried beyond the outlet of the pipe I, as shown at M. The objectof eontractin g the air-pipe K and carrying it beyond the entrance of the fuel and air pipe I is that a more thorough oommingling of the fuel and air takes place, and it also prevents the fuel blowing back through the pipe I.

In the pipes K and I are regulating-valves or slides J J. The object of these valves is to regulate the supply of air, the fuel-supply bein g regulated by the motion given to the-screwconveyer F by means of the cone or spiral pulley G. The injecting or feeding apparatus is flattened at the discharging-outlet, so as to spread the carbonized air over or above the bottom of the furnace, as shown at L, and they can be set at any angle, so that the carbonized air will impinge on the bottom of the furnace, or at any point required.

N N is a frame or support for the cone-pulley G,the shaftand screw-conveyer F, and hopper E.

Fig. 2 is a section of the pipe, showing the valve or slide J. This slide or valve is made either square or circling, and is hinged to the pipe at one side, and with a handle on the opposite side, so that it can be raised or lowered in the pipe'as occasion requires.

Fig. 3 is a section of the feeding or injecting apparatus, showing the flattened spreader L.

The operation of my invention can be clearly understood by the drawings. A fire of some light material is ignited in the combustionchamber A. Pulverized or granulated fuel is placed in the hopper E. Motion is then given to the cone-pulley G and to the blower H by belting or other means. The screw-conveyer F conveys the fuel into the pipes I I, and it passes down into the air-pipe at M, where it is commingled with the air from the blower and is forced into the combustion-chamber, where it instantly ignites from the fire previously kindled, and the flame and heat are forced over the bridge-wall into the heating-chamber and in contact with the metal to be melted or heated.

Having fully described my invention, what I desire to claim and secure by Letters Patent 1. A feeding and injecting apparatus for granulated or pulverized fuel, consisting of the hopper E, the right and left screw-conveyer F,

and the cone or spiral pulley G, in combination J, and the spreader or flattened pipe L, in comwith the air and fuel pipesIand K,the hinged bination with a furnace designed to consume 10 Valves J, and the spreader or flattened pipe L, granulated, pulverized, or liquid fuel, consubstantially as and for the purpose described. strncted substantiallyas shown and described.

5 2. Thefeeding and injecting apparatus,con- JOHN G. MCAULEY.

sistingof thehopper E, the right and left screw- Witnesses: conveyer F, the cone or spiral pulley G, the JOSEPH J. KOEM,

air and fuel pipes I and K, the hinged valves S. l. MCDOUGALL. 

